October 6th, 2012, 11:01 AM  #1 
Newbie Joined: Oct 2012 Posts: 13 Thanks: 0  Simplify trig equation
cot(2arcsinx) Please help, thanks in advance 
October 6th, 2012, 11:07 AM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,155 Thanks: 463 Math Focus: Calculus/ODEs  Re: Simplify trig equation
Using the doubleangle identity for cotangent, we may write: Can you finish? 
October 6th, 2012, 11:14 AM  #3  
Newbie Joined: Oct 2012 Posts: 13 Thanks: 0  Re: Simplify trig equation Quote:
 
October 6th, 2012, 11:18 AM  #4 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,155 Thanks: 463 Math Focus: Calculus/ODEs  Re: Simplify trig equation
No, you want to substitute for into: Using: 
October 6th, 2012, 12:13 PM  #5  
Newbie Joined: Oct 2012 Posts: 13 Thanks: 0  Re: Simplify trig equation Quote:
 

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